Heat Advisory in Effect Today, Tuesday, June 23, from 1-7 p.m.

Posted at 10:30 a.m.

According to the National Weather Service, today, Tuesday, June 23, is expected to be the hottest day of the year (so far), with heat indices up to 105 degrees possible. And the weather service has issued a heat advisory, in effect from 1-7 p.m.

A heat advisory means that a period of high temperatures is expected. The combination of high temperatures and high humidity will create a situation in which heat illnesses for those without air conditioning or those outdoors for an extended period are possible.

Dave McKernan, coordinator of emergency management, encourages residents to find a cool spot inside to avoid the heat.


Our Health Department, Risk Management Division and the Office of Emergency Management offer the following tips to stay safe and cool:

  • Drink plenty of fluids: Drink two to four glasses of cool fluids each hour. Your body needs water to keep cool. Drink water even if you don’t feel thirsty.
  • Keep cool indoors: If you can, stay in an air-conditioned area. Resting for just two hours in air conditioning can significantly reduce heat-related illnesses. Consider spending the warmest part of the day in public buildings such as movie theaters, shopping malls and other community facilities. Several Fairfax County facilities also serve as cooling centers where you can go for respite from the heat. These include libraries and community centers, as well as the county Government Center.
  • Electric fans may provide comfort, but with temperatures in the 90s, fans do not prevent heat-related illness. Taking a cool shower or bath, or moving to an air-conditioned place is a much better way to cool off.
  • Avoid strenuous physical activities or reschedule them for the coolest part of the day, usually the early morning. Limit physical activity until your body adjusts to the heat.
  • Eat light meals.
  • Wear light-colored clothing, which helps reflect sunlight.
  • Wear sunscreen to prevent sunburn. Sunburn makes it more difficult for your body to cool off.
  • Make sure your home is well insulated and that you have weather stripping around your doors and window sills to keep the cool air inside. Also keep shades pulled down to keep extra heat out.

And please, never leave children or pets unattended in a car — not even for a few minutes. In addition, McKernan says that if you have elderly neighbors or people with special needs, take a few minutes and check on them to make sure they are okay.


Weather Forecast

Today: Showers and thunderstorms are likely, mainly after 4 p.m. Some storms could be severe, with hail and damaging winds. Partly sunny, with a high near 95. Heat index values as high as 102. Southwest wind 10 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60 percent. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight: Showers and thunderstorms likely, mainly before midnight. Some storms could be severe, with hail and damaging winds. Mostly cloudy, then gradually becoming mostly clear, with a low around 70. Northwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.


Get more on staying safe in extreme heat and find the location of a nearby cooling center.


About Fairfax County Emergency Information

Official emergency information about preparedness, response and recovery from Fairfax County Government.